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[Help Thread] FMC Discussion

guysensei1 said:
FMC NR mean at Singapore 333 open! Here are my solutions, I dont have the actual scrambles so I just generated them on cube explorer.
Click to expand...

Congrats! That's a huge improvement over my previous NR, and I'm going to have to practise a lot to reclaim it at the next comp. ;)
 
guysensei1 said:
FMC NR mean at Singapore 333 open! Here are my solutions, I dont have the actual scrambles so I just generated them on cube explorer. Any advice on how to improve?

Solve 1 (31)
Scramble: U2 B D2 R2 B2 R2 B2 U B F' L' U F2 L2 U2 L2 R D L'
inverse:
D2 F B R' U R2//2x2x2 (6/6)
U2 B U B2 U' L2 B'//XXcross (7/13)
L' U' L//F2L-1 (3/16)
switch to normal:
R' U' R U' B U B'//F2L (7/23)
B U' B' U2 F' U B U' F B' U2 B U B' U'//COLL, EPLL skip (15/38)
7 moves cancel
Final: R' U' R U F' U B U' F B' U2 B U B' U' L' U L B L2 U B2 U' B' U2 R2 U' R B' F' D2 (31)

Solve 2 (33)
Scramble: R B2 D' R2 D2 L F B D R U R' F2 D2 R' L U2 L D2 R'
R2 L' U//1x2x2 (3/3)
switch to inverse,
L' U2 B D F D//2x2x3 (6/9)
D' L' D2 F2 D'//EO+unintended reduction to 2gen (5/14)
switch to normal:
F2 L2 F L F'//F2L-1 (5/19)
L2 F' L2 F L F' L2 F//complete F2L (8/27)
L2 U' L' U L' U' L2 U//sune, PLL skip (8/35)
2 moves cancel
Final: R2 L' U L2 F' L2 F L F' L2 F L2 U' L' U L' U' L2 U D F2 D2 L F' D' B' U2 L (33)

Solve 3 (31)
Scramble: D R B' U' R2 U2 B' U2 D R' B L2 D' L2 D2 F2 R2 U2 F2 U
Inverse:
L B2 R2 F' U2//2x2x2 (5/5) I first found B2 R2 F' U2 as a 2x2x2 but I couldn't find a good continuation so I inserted an L move at the start
R' D B' R2 D B'//2x2x3 (6/11)
R D' R2//F2L-1 (3/14)
switch to normal:
D' R' D R//complete F2L (4/18)
F' D' R' D R F D'//3 corners (7/25)

Skeleton: D' R' D R F' D' R' D R F D' R2 D R' * B D' R2 B D' R U2 F R2 B2 L'
*= R F L F' R' F L' F', 2 moves cancel
Final: D' R' D R F' D' R' D R F D' R2 D F L F' R' F L' F' B D' R2 B D' R U2 F R2 B2 L' (31)
Insertion was optimal according to insertion finder

31 moves was NR single briefly, then a friend of mine somehow got a 28 on the last scramble. He or I should be posting that solution here soon.

EDIT: Here's the NR single solve (the important parts anyway) by Teo Bin Jie, done on the last solve.
B' U R U F D' R2//2x2x3 -1 edge (7/7)
B' U L U' L' B2 U'//2x2x3 (7/14) yep, you read that right, 7 moves to solve a piece.
switch to inverse,
L2 B2 D L D' B//3 corners (6/20)
He did not find an insertion that cancelled, so he inserted an 8 move commutator somewhere to solve the cube. 20+8=28 moves. Optimal was 26 though.
Click to expand...

Something wrong with the second solution?
 
26.33 OcR Mo3 explanations :)

R' U' F L2 D B2 F2 D U L2 D2 B L2 F L2 U B F' R B R' F' R' U' F

On inverse
R (Reduce to 4 bad edges + build 2 pairs)
Switch to normal
U2 F R (EO)
D' U B (Some solved 1x2x2's, leaving me 4 moves away from an F2L-1)
U' R' U' R U2 R' U' R
U' R2 F2 R2 U2 (3C)

Skeleton: U2 F R D' U B U' R' U' R U2 R' U' R U' R2 F2 R2 ^ U2 R' (20)

^ F U' B' U F' U' B U

Solution: U2 F R D' U B U' R' U' R U2 R' U' R U' R2 F2 R2 F U' B' U F' U' B U' R' (27)
R' U' F L2 D2 L2 F U2 R2 B L2 D' B R U R B U2 F2 D2 F U2 R' U' F

F' (Reduce to 4 bad edges)
Switch to inverse
L R2 U B (EO)
Switch to normal
U' R' (1x2x2)
L' (1x2x2)
F2 R D (1x2x2)
B2 D2 F2 L2 (5C)

Skeleton: F' U' R' L' F2 * R D B2 D2 F2 L2 B' U' R2 L' (15)

* F' R' B2 R F R' B2 @ R
@ B L B' R2 B L' B' R2

Solution: F' U' R' L' F R' B2 R F R' B' L B' R2 B L' B' D B2 D2 F2 L2 B' U' R2 L' (26)
R' U' F R' D2 L D2 R2 F2 R D2 L2 D2 F' D' B' U' F' U R2 F2 R U R' U' F

On inverse
R' B2 D' (2x2x2)
L' U L' U' B' U (2x2x3)
Switch to normal (Finish is easy to see on inverse but this is how I did it)
L' B2 L (EO)
B' U B U' B (5C)

Skeleton: L' B2 L B' U # B U' B U' B U L U' % L D B2 R (17)

# U R U' L2 U R' U' L2
% U L' U' R2 U L U' R2

Solution: L' B2 L B' U2 R U' L2 U R' U' L2 B U' B U' B R2 U L U' R2 L D B2 R (26)

Got optimal insertions on everything, so I guess it's nice that I didn't have a potential chance at OcR single? :p
 
26 on the third Oregon scramble; wish I could've been there.

Found in about 15 minutes

Scr: R' U' F R' D2 L D2 R2 F2 R D2 L2 D2 F' D' B' U' F' U R2 F2 R U R' U' F

on inverse
R U // square
switch? nah
F2 R2 // sub-optimal 2x2x2 but hey the pairs are still there
U' L2 U' B U2 B // F2L-2
B F U2 F' B' // F2L-1
B U' B' R' U2 @ R U2 // 19 to 3

@ B L B, R2 // cancels 1, optimal

Final: U2 R' U2 R B U F U2 B L2 B R2 B' L2 B R2 F' U2 B' U L2 U R2 F2 U' R' (26)
 
Nice stuff with Insertions (from Dunas Open 2016)

S // R' U' F U F2 D L2 D R2 D2 B2 R2 D2 B2 F' R2 B U2 R D' U2 F' R' U' F
I // F' U R F U2 D R' U2 B' R2 F B2 D2 R2 B2 D2 R2 D' L2 D' F2 U' F' U R

L2 B' L2 // 122 + Pairs
(R' U F') // 123
(U B U2 D F U') // 4E2C

Skel // L2 B' L2 U F' + D' U2 B' U' F U' R * - 12
* R' B2 L U' L U L2 B2 R D
+ F D2 F' U D' L D2 L' U' D

Solution // L2 B' L2 U D2 F' U D' L D2 L' U B' U' F U' B2 L U' L U L2 B2 R D - 25 Moves
 
I somehow got motivated to practice FMC after my last comp. Did an attempt but got stuck

Scramble: D2 U2 L' D2 R2 B2 F2 U2 L' D2 L D' B L R2 U2 R F2 D F D'

inverse:
square: F’ R U’

normal
double x-cross: L R’ U’ L’ R’ D’ R F' R2

Couldn't find any good continuation. Help?
 
So I need some help with insertions, could anyone help? It's the scramble for the weekly comp so watch out!

So I basically found an 18 move skeleton to ab5c, and a want to use incersions to finish. I know one of the comms is (B' U' B D' B' U B D), but when I try to insert it randomly in, (to save moves) it doesn't work. Is this not how they work? Many thanks.

https://alg.cubing.net/?setup=F-_R-...D_R_D2_B-_R2_B_R2_L_D2_B-_D-_B-_D2_B-_L_D_L_D
 
Berd said:
So I need some help with insertions, could anyone help? It's the scramble for the weekly comp so watch out!

So I basically found an 18 move skeleton to ab5c, and a want to use incersions to finish. I know one of the comms is (B' U' B D' B' U B D), but when I try to insert it randomly in, (to save moves) it doesn't work. Is this not how they work? Many thanks.

https://alg.cubing.net/?setup=F-_R-...D_R_D2_B-_R2_B_R2_L_D2_B-_D-_B-_D2_B-_L_D_L_D
Click to expand...
U don't need to do the same comms. You need to do different comms depending on the positions of the corners after each move
 
Berd said:
So I need some help with insertions, could anyone help? It's the scramble for the weekly comp so watch out!

So I basically found an 18 move skeleton to ab5c, and a want to use incersions to finish. I know one of the comms is (B' U' B D' B' U B D), but when I try to insert it randomly in, (to save moves) it doesn't work. Is this not how they work? Many thanks.

https://alg.cubing.net/?setup=F-_R-...D_R_D2_B-_R2_B_R2_L_D2_B-_D-_B-_D2_B-_L_D_L_D
Click to expand...
Put stickers on the 3 stickers that need to cycle, then do the scramble. While doing the skeleton, check the position of the stickers after each move and see it you can do a commutator to swap them around (now look for cancellations).
Good luck :)
 
Thanks for all the tips! I think I did it right...?

So I had this skeleton to ab5c + an L2:
D R D2 B' R2 B R2 L D2 B' D' B' D2 B' L D L D (18)
I then solved 2 corners with R' D' R U' R' D R U, inserting where the asterix is:

D R * D2 B' R2 B R2 L D2 B' D' B' D2 B' L D L D
This resulted in 4 moves canceling (I think!)!
So to ab3c + L2 is:
R U' R' D R U D2 B' R2 B R2 L D2 B' D' B' D2 B' L D L D (22)

I then solved the last 3 corners with L F L' B L F' L' B', inserting where the hashtag is:
R U' R' D R U D2 B' R2 B R2 L D2 # B' D' B' D2 B' L D L
The last B' goes with the B' from the skeleton, to create B2, canceling 1 move (again, I think.).

This gives me:
R U' R' D R U D2 B' R2 B R2 L D2 L F L' B L F' L' B2 D' B' D2 B' L D L D (29)

Then I just need to finish with L2, giving me this:

R U' R' D R U D2 B' R2 B R2 L D2 L F L' B L F' L' B2 D' B' D2 B' L D L D L2 (30)

So what does everyone think? Could I of done better? Thanks!

https://alg.cubing.net/?setup=F-_R-...D2_L_F_L-_B_L_F-_L-_B2_D-_B-_D2_B-_L_D_L_D_L2
 
Fantastic Manhattan Competition 2016 Scrambles : 25.33 mo3

S1 // R' U' F U2 L2 B2 R B2 R2 U2 B2 L' B F2 D' L B' L2 F' D B2 L' F2 R' U' F
I1 // F' U R F2 L B2 D' F L2 B L' D F2 B' L B2 U2 R2 B2 R' B2 L2 U2 F' U R

L2 F2 R' F' // EO
(B2 R' B2) // P222
U D2 L2 // P223
D' F2 D F2 L D L' F2 D' L' // L3C

Skel // L2 F2 R' F' U D2 L2 + D' F2 D F2 L D L' F2 D' L' B2 R B2 - 20
+ L U2 L' D' L U2 L' D

Solution // L2 F2 R' F' U D2 L' U2 L' D' L U2 L' F2 D F2 L D L' F2 D' L' B2 R B2 - 25 Moves

S2 // R' U' F R' D2 F2 R' B2 R' D2 L2 D2 B' F2 U2 F' L U R2 F2 R' U2 L F' R' U' F

B2 R' // EO
B U' R * R L2 F D' F' D F U2 // 223
D2 B // 2E3C
* L R' B' R B L' B2 R' B2 R B'

Solution // B2 R' B U' L B' R B L' B2 R' B2 R B' R L2 F D' F' D F U2 D2 B - 24 Moves

S3 // R' U' F L2 D L2 F2 U2 B2 D' B' U L' F' R B2 R D' F2 R D2 B2 R' U' F
I3 // F' U R B2 D2 R' F2 D R' B2 R' F L U' B D B2 U2 F2 L2 D' L2 F' U R

R2 B' U // EO
(B R2 B' R') // P222
(L' B' L2) // P223
L R2 // 223
(L' D2 L B D2) // F2L-1
(B R' B2 R B2) // L3C

Skel // R2 B' U L R2 B2 R' + B2 R B' D2 B' L' D2 L' B L R B R2 B' - 21
+ R' F' R B' R' F R B

Solution // R2 B' U L R2 B2 R2 F' R B' R' F R B' R B' D2 B' L' D2 L' B L R B R2 B' - 27 Moves
 
A 32
D2 U2 B2 L2 F R2 U2 L2 F U' B2 U' L' U2 L2 B' R2 U' B2

U B D2 L' //EO
B' // square
L2 R2 D L2 //222
F2 D' F' D F //edges (7c)
Skeleton: * U B D2 L' B' L2 R2 D L2 F2 D' F' D F (14)
Insert at * R D R' $ U @ R D' R' U' (cancels 2)
Insert at @ D R U2 R' D2 R U2 R' (cancels 2)
Insert at $ R' D R U' R' D' R U (cancels 2)
Solution: R D R2 D R U' R' D' R U2 D R U2 R' D' R U2 D' R' B D2 L' B' L2 R2 D L2 F2 D' F' D F (32)
That moment when your insertions are longer than your skeleton :p
I could have looked for insertions longer, but I need to do other things, so I'm relatively happy with 32.
 
Last edited:
Found a weird skeleton on this scramble that leaves 3 edges and 4 corners, and got stuck after that lol

B' L D R U R F U' L F U2 F' R2 F L2 B R2 U2 F' R2 U

pairs: D’ U F’
1x1x3: B’ D’ R’ D2
double x cross: L B2 R F2 R F2
F2L-1: R D R’
leave 4C3E: D F’ D2 F D2

I tried putting the skeleton in IF but it says that there are 7 unsolved corners and 11 unsolved edges. Is there something I'm doing wrong?
 
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